Chain tool



Ri CHAIN TOOL. APPLICA'HGN FILED JUNE 28| $920.

Patented-Nov. 21, 1922.

a -nuunuunnn 531e. j i

Patented Nov. 2l, 1922.

nire

BOSQUE BEAN, GF ,BEREA,

CHE-31N T0013.

Application led June 28,

To @ZZ whom t may concern.'

Be it known that l, Boscov, linnn, a citi- Zen of the lUnited States, residing at Berea,= in the- County ot Cuyahoga and State oit Ohio, have invented certain new and nseiul improvements in Chain rToole', Loi which the following is a speciiication. n

My invention relates to improvements in chain tools, the present embo liment otvthe invention being particularly designed and adapted for. use in connection with modern chains employing a plurality of lin rs connected by a series of rivets.

The present invention is particularly de-` signed and adapted for remo-ving and reinserting yand reheading such rivets ot sach chains in connection with the removal and insertionot chain links in the repair or re adjustment of such chains. j

rlhe primary object of the invention vis the provision of a generally,v improved tool of this class which will be exceedingly siniple in construction,` cheap ot manufacture,

` and etiicient in use.

A Jfurther and very important object is the provisionlof a tool of this class having properly 1formed and arranged heads and chain link clamping and rivet engaging and ejecting devices adapted to initially receive the links of the cha-in to securely hold the same while the rivet is being ejected by the rivet ejecting device or plunger.

A still further Objectis the provision or anvimproved tool liavingan anvil and link clamping ldevice provided at one side with a. rotatable head, said link clamping device being provided with a `rotatable rivet engaging member provided with a second operating head together with an operating` handle or wrench for the operation of said link clamping and rivet engagingand ejectl .ing or reheading members (as the case may be) by the successive operation of said op-` erating heads ot saidtool.

Vlith the above mentioned and other ends in view, the invention consists in the novel construction, arrangement, and combinationy yoit parts, hereinafter` described, illustrated in some of its embodiments in the accomg panying drawings, and particularly pointed out in the appended claims.r

Referring to the drawings, yiorininga part of this specification, Figure l isa side ieee. semina' eea/:5o.

elevation o t a chain tecl constructed in accordance with this invention, the link clamping devicel beine." provided with the interchangeablel tool ,if or wrench, and

the rivet ejectiy,Y device being in its Aad-` vanced or projected po 'tion after ejecting a rivet Yfrom the links oiu the chain. l i

Fig. 2, a view partly in side elevation and partly insection, the tool handle being removed. f I

allig. 3, a side elevation ot the improved tool or operating handle removed. v f y Fig. 4, a top plan view of the sane in operative engagement 'with the links of a chain and the rivet to be ejected, and j )reparatory to rthe actuation ot the rivet eject/ing device or plunger.

'lligz 5, a side elevation, partly in section, ot a modified torni oit tool l to simuladapted tancously clamp and engage a pair ot rivets,

a modiiied forni o'tanvil movable for ini-4 tially engaging and yclamping the side links being shown. l f ig. 6, a top )lan view ofthe same.

Fig. 7,y a side elevation ci?, the same equipped with a rotatably mounted rivet en-` gaging member in the specific form ot' rivet reheader. n j

Similar numerals ot reference designate like parts throughout all the figures ot the drawings. l

The improved tool comprises a suitable block Lprovided with spacedheads ll and lb, respectively, forming an intermediate chain receiving recesslc. j n f n rthe head block l, is preferably provided with a liiamille 2, and thehead l provided with an anvil 3, having arivet receiving recess The recess d is preferably sniii# cient-ly large to receive thehead d, otv thev rivet 4, andy also the washer oi the chain links 5, as will be obvious upon reference to Fig. il oie the drawings. v 4

, The anvil 3, is preferably mounted in a suitable opening of the head la, asshown in F l, 2 and i of the drawings, andin such instance is provided ywith a. rounded rivet head and washerreceiving recess, but it desired. the .anvil may comprisea transverse` block 3b, provided with forwardly en-`r tending jawn or projections jadapted to extend on opposite sides of a pair ot rivets and to engage directly' with the sidelmks.

as shown most clearly inJFigs. 5 and 6 of the drawings.

In this form the jaws form an intervening space or recess 3d, for receiving the adjacent heads or ends of the rivets as successively ejected as hereinafter described., this iorm being particularly designed for a type of chain in which the heads of the rivets are arranged directly against the side links yinstead ot' upon intervening Washers, as shown in Fig. 4 of the drawings.

The chain link clamping device is preferably in the form of an externally threaded member 6, provided at one end with a rivet head receiving recess 6, and at the other endy with an operating head 6b, the latter being preferably angular` for suitable operation by a tool handle 7, said tool handle 7 being provided with a head 7a, having an angular opening 7b, adapted to tit upon the angular head 6b, for operating the clamping member 6. The chain link clamping member 6, is threaded in a threaded openmg'in the head 1b, and is provided with a threaded bore terminating in the rivet head receiving recess 6a, said threaded bore being adapted to removably receive and contain a rivet ejecting plunger 8, said plunger terminating in a rivet ejecting pin 8a, the latter filling the rivet head receiving recess 6a. The outer end of thev threaded plunger member 8, is provided with an operating head 8b, corresponding in form and size to the head 6", of the chain link clamping member 6, so that the tool handle 7, may be used interchangeably on the operating heads 6b and 8b.

'lVhen it is desired to remove a rivetv from a chain, the links of the latter are placed between the anvil and clamping members 3 and 6, respectively, so that the heads of the rivet are received in the recesses 3a, and 6a, respectively, and the overlapping portions of the links 5, are drawnv up so as to take up the slack or play therebetween and securely seat the heads of the rivets in the head receiving recesses of the opposing anvil and clamping members. The rivet is then ejected by transferring the head 7 f1, of the toolk handle 7, upon the operating head 8b, of the rivet ejecting device, and by drawing up on the same the edges of the adjacent rivet head will be stripped olf and the body of the rivet ejected.

When it is desired to rehead the rivet, the latter after being placed in the overlapping links may be placed in the tool head and the clamping member 6, be replaced with a modified lform of threaded link clamping member 6, having an operating head 6d, as shown in F ig. 7 of the drawings, and in which instance a modified form of rivet engaging member is used, such rivet engaging member comprising a rotatable member 8c, having a relatively fixed head 8d, the latter having a conical recess 8e, adapted to receive the end of the rivet and upset the latter as the member 8e and head 8d carried thereby are rotated, and as the clamping device 6c is fed forwardly at intervals. In this form it will be seen that the anvil 3, is reversed from the position shown in Figs. l, 2 and` l of the drawings, bringing the opposite side of the anvil into use, such side being provided with a tapered rivet receivingl and holding recess 3, adapted to engage and hold the end or head of the rivet and prevent the same from rotating or turning in the upsetting and reheading operations by the rotatable member 8c, and in some instances' the anvil may be turned and operated as a rivet upsetting and reheading device by rotating the same through the medium of the angular head 3d, provided for such purpose.

In the form shown in IP 5 and G ot the drawings, the anvil 3b, is movable through the clamping screw 9, provided with the operating head 9a, and the head 1b, is provided with a pair of threaded openings l0, terminating in link clamping heads l0, the latter being provided with rivet head receiving recesses lOl. In this form the threaded openings 10, are adapted to receive a plunger 8f, having a head 8g, and terminating in a rivet ejecting pin 8h( In this 'form the block 3b maybe moved toy take up the looseness or slack between the links and in bringing the heads of the rivets in seated position in the rivet head receiving recesses 10b, and after the rivet is ejected at one side or end-ot the overlapping links, the plunger 8f may be removed and placed inthe next threaded opening and ythe other rivet removed.

I-Iaving thus rdescribed some oit the embodiments ot' my invention, without having attempted to set forth all the terms` in which it may be made, or all the modes of its'use, what I claim and desire to secure by Letters Patent, is,- v

l. In a chain tool, the combination with a block carrying an anvil member and a link clamping member, one of said members being adjustable and having a yrivet head receiving recess; of a rivet engaging member rotatable in one of said members and adapted to be held by the latter while holding said' links in position.y

2. In a ychain tool, the combination with ,an anvil member and a clamping member co` operating therewith and'provided with an operating head; of a rivet treat-ing member' rotatable in one of said members and ,pro` vided at one side with a rivet head engaging member and at the other with an operating head adjacent said first mentioned operating head, and an operating handle for said operating heads.

3. In a chain tool, thecombination with an anvil having a rivet head receiving recess, and anadjustable clamping device cooperaing therewith and provided with an operatvIl() in head; of a rivet treating member rotatab e therein and provided at one side with a rivet head engaging member and at the other With an operating head adjacent to the operating head of said link clamping device, and an operating handle adapted to operate either of said operating heads.

4. In a chain tool, the combination with a block carrying an anvil member at one side and adjustable link clamping member at the other, one ot' said members having a rivet head receiving recess; of a rivet engaging member rotatable in one of said members and adapted to be operated on the rivet while the links are clamped between said anvil and clamping members and the rivet is held in said rivet head receiving recess.

5. A chain tool, comprising a block provided With spaced heads, an anvil having a rivet head receiving recess, an adjustable link clamping device opposite said anvil having a rivet head receiving and guiding recess, and a rivet ejecting plunger in said clamping device adjustable in said rivet head receiving and guiding recess and provided with an operating head at the side of said block.

6. A chain tool, comprising a block provided With spaced heads forming an intermediate chain receiving recess, an anvil in one head having a rivet head receiving recess, a chain link clamping screw in the opposite head having a rivet head receiving and guiding recess, and a rivet eject-ing plunger adjustable in the latter and having an operating head projecting from said last mentioned head.

7. A chain tool, comprising a block provided ivith spaced heads including an anvil having a rivet head receiving recess. an adjustable link clamping device opposite said anvil having a rivet head receiving recess, a plunger adjustable in said clamping device and provided With a rivet ejecting stem filling said rivet head receiving recess and provided with an operating head at the side of said block.

8. A chain tool, comprising a handled block provided With spaced heads forming an intermediate chain receiving recess, an anvil having a rivet head receiving recess', a chain link clamping device opposite said anvil having a rivet head receiving recess at one end and an operating head at the other, a rivet ejecting plunger adjustable in said link clamping device having an operating head, and a tool handle'interchangeable with said oj'ierating heads.

9. A chain tool, comprising a handle provided at its top With spaced heads, an anvil having` a rivet head receiving recess, a chain link clamping device adjustable toward said anvil and provided vvith a rivet head receiving recess, and a rivet ejecting plunger in said link clamping device having a rivet ejecting head operable in said recess, and

a handle removable on the head'of said clamping device and interchangeable with said rivet ejecting plunger.

10. A chain tool, comprising a handle provided at its top With spaced heads, an anvil having a rivet head receiving recess, a chain link clamping device adjustable toward said anvil and having an operating head at one end and provided with a rivet head receiving recess at the other, a rivet engaging member rotatable in said link clamping device having an operating head adjacent said operating head of said clamping device, and a handle on the head ot said clamping device and interchangeable with the operating head of said rivet engaging member.

11. A chain tool, comprising a block carrying an anvil `having a rivet head receiv ing recess and a link clamping device in cooperative relation therewith terminating in an angular head, said clamping device being provided with a threaded opening terminating in a rivet head receiving and guiding recess, a threaded member in said threaded opening terminating at one end in a rivet ejecting plunger operable in said rivet head receiving and guiding recess and at the other end in an angular head adjacent said an gular head of said link clamping device, and an operating handle provided With an angular recess interchangeable With said angular heads for operating said link clamping and rivet ej ect-ing members.

12. A chain tool, comprising a block having a rivet head receiving recess and a link clamping device in co-operative relation therewith terminating in an operating head' at one side of said block, said clamping device being provided with' a threaded opening terminating in a rivet head receiving recess, a threaded member in said threaded opening terminating at one end in a rivet ejecting plunger' operable in said rivet head receiving and guiding recess and at the other end in an operating head adjacent said operating head of said link clamping device, and an operating handle interchangeable with saidV operating heads of said link' clamping and rivet ejecting members.

13. In a chain tool, a chain link engaging and slack taking up device having a rivet receiving recess and an operating head and a rivet engaging member movable relatively therein.

14. In a chain tool, a chain link engaging device having a rivet head receiving recess and an operating head, a rivet engaging member rotatable therein and provided with an operating head, and a tool handle interchangeable vvith said operating heads.

15. In a chain tool, the combination With an anvil provided With a recess adapted to receive the head of a rivet and to engage the adjacent side of the chain link; of a link clamping member having a rivet head re- 16. In a tool for Chains embodying a plm rality of riveted overlapping side links, the combination with an anvil provided with a recess adapted to receive the head and washer of a rivet and to engage the adjacent side et a chain link; of a link clamping member having a rivet head receiving recess, one ot said members being adjustable toward the other for initially engaging and taking up the slack between said chain side links.

17. In a chain tool, the combination with spaced anvil and link clamping members adapted to receive the links of the chain therebetween and having rivetreceiving reeesses, one of said members being adjustable relative to the other to initially engage. .and take up the slack in the links therebetween, and a rivet engaging member movable relatively while the links are being held.

18. In a chain tool, the combination with spaced anvil and link Clamping members adapted to receiveI the links ot' the chain therebetween and having rivet head receiving recesses, one ofsaid members being adjustable relative to the other to initially engage and take up the slack in `.the links therebetween, and a rivet engaging member movable in one 4of said members while the links are being held in relatively fixed position.

In testimony whereof I `have a-ixed my signature.

ROSCOE BEAN. 

